Skeletal Arch Expansion

Skeletal Arch Expansion

Write short notes on appliances used for dental and skeletal arch expansion.
Answer.

Appliances Used for Dental Arch Expansion

• Slow arch expansion appliances causes dental arch expansion.
• Some of the appliances which causes dental arch expansion are:
  • Jack screw: Jack screw for slow expansion has more spread out activation schedule and have a smaller pitch than those of rapid maxillary expansion.
  • Coffin spring: This appliance was by Walter Coffi

“Importance of studying skeletal arch expansion for better outcomes: Questions explained”

• • • It is a removable appliance capable of slow dentoalveolar expansion.
    • Appliance consists of an omega shaped wire placed in midpalatal region.
    • Free end of omega embedded in acrylic covering the slopes of the palate.
    • Spring is activated by pulling the two side by using three-prong pliers.

“Understanding the role of skeletal arch expansion in orthodontics: Q&A explained”

Quad Helix—Used to Expand Narrow Maxilla

• It have evolved from the original coff loop.
• Quad helix incorporates four helices that increases the wire length, therefore the flxibility and range of action is more.
• Wire of helix is soldered to band on the fist molar.
• Parts:

“Steps to explain different types of skeletal arch expansion: Surgically assisted vs non-surgical: Q&A guide”

• • Two anterior helices.
  • Two posterior helices.
    • Anterior bridge-wire between anterior helices.
    • Palatal bridge-wire between anterior and posterior helices.
  • Free wire ends—outer arms.

“Common challenges in performing skeletal arch expansion effectively: FAQs provided”

• Quad helix bring about slow dentoalveolar expansion.